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  1. #1
    Member
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    May 2007
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    Moody
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    Yamaha not running well

    I have a 2001 yamaha v-max 200 that will fire instantly on the first crank with no problem. After running to the first hole when I go to crank it doesn't want to crank or should I say stay cranked. I changed the plugs and O2 sensor last year and don't have a clue what is wrong now. Any help would be appreciated!!

  2. NC Bass Club/Yamaha Motors Moderator BuzzB8's Avatar
    Join Date
    Jun 2004
    Location
    Asheboro, NC
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    7,090
    #2

    Re: Yamaha not running well (FSHMN)

    Fuel pump diaphrams? Give that a check.

  3. Member
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    #3

    Re: Yamaha not running well (BuzzB8)

    Thanks I'll give that a look.

  4. Banned
    Join Date
    Jun 2004
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    Kissimmee,Fl
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    4,479
    #4

    Re: Yamaha not running well (FSHMN)

    .Does it have a gasoline odor? If so ,agree fuel diaphragms.

  5. Member
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    May 2007
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    Moody
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    #5

    Re: Yamaha not running well (BuzzB8)

    found a small crack in the top pump, rear diaphram and a nice crack in the center pump, rear diaphram also. I figured I might as well replace them all including the gaskets. Thanks for the help it is greatly appreciated. I just hope my local dealer has a set.

  6. Member
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    #6

    Re: Yamaha not running well (FSHMN)

    Replaced diaphram's and ran it Saturday and it ran like a charm. Thanks for the help

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